The sound of frictionless acceleration.
By adding more "e"'s you are stateing that the object is accelerateing longer than normal*.
By changing the "e"'s to capitals you are stateing that the object is allelerating faster than normal*.

*Normal is stated by the average acceleration and length the person says the word at.

Used to describe your reaction to something shocking, surprisingly enjoyable, interesting, or anything else that instills an intense emotion in oneself, implying that it's so intense you just can't hold your urine in any longer.